[INFO] cloning repository https://github.com/dmorigin/simpermut-rc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmorigin/simpermut-rc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmorigin%2Fsimpermut-rc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmorigin%2Fsimpermut-rc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53b1ad874083dd64bacb5451c43482f30decefd0
[INFO] checking dmorigin/simpermut-rc against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmorigin%2Fsimpermut-rc" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmorigin/simpermut-rc on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmorigin/simpermut-rc
[INFO] finished tweaking git repo https://github.com/dmorigin/simpermut-rc
[INFO] tweaked toml for git repo https://github.com/dmorigin/simpermut-rc written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dmorigin/simpermut-rc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8f0c19cbd31ec7f3323ec4f04a39af1aa9fc8566f911fcdc11d5cb23b968a5a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e8f0c19cbd31ec7f3323ec4f04a39af1aa9fc8566f911fcdc11d5cb23b968a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8f0c19cbd31ec7f3323ec4f04a39af1aa9fc8566f911fcdc11d5cb23b968a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8f0c19cbd31ec7f3323ec4f04a39af1aa9fc8566f911fcdc11d5cb23b968a5a", kill_on_drop: false }`
[INFO] [stdout] e8f0c19cbd31ec7f3323ec4f04a39af1aa9fc8566f911fcdc11d5cb23b968a5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44da4bbd6de64af499585e6c217f7c3bbbf427203a9f61bbf04ab70745946d37
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "44da4bbd6de64af499585e6c217f7c3bbbf427203a9f61bbf04ab70745946d37", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling ryu v0.2.4
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking smallvec v0.6.4
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking parking_lot v0.6.3
[INFO] [stderr]     Checking chrono v0.4.5
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]     Checking console v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]     Checking sim_permut v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/simcraft/mod.rs:156:69
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn permutation(&mut self, iterations: (u64, u64)) -> Result<(u64), Error> {
[INFO] [stdout]     |                                                                     ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/simcraft/mod.rs:156:69
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn permutation(&mut self, iterations: (u64, u64)) -> Result<(u64), Error> {
[INFO] [stdout]     |                                                                     ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.46s
[INFO] running `Command { std: "docker" "inspect" "44da4bbd6de64af499585e6c217f7c3bbbf427203a9f61bbf04ab70745946d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44da4bbd6de64af499585e6c217f7c3bbbf427203a9f61bbf04ab70745946d37", kill_on_drop: false }`
[INFO] [stdout] 44da4bbd6de64af499585e6c217f7c3bbbf427203a9f61bbf04ab70745946d37